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Periodic solutions for nonlinear evolution inclusions. (English) Zbl 0908.34043
The authors consider the abstract problem $x'(t) + A(t,x(t)) + F(t,x(t)) \ni h(t)$ where $$A$$ is a pseudomonotone operator and $$F$$ is a possibly multivalued function. The standard technique of an evolution triple is adopted.
The existence of a time-periodic solution is shown using known methods of monotone operator theory.
Reviewer: E.Feireisl (Praha)

##### MSC:
 34G20 Nonlinear differential equations in abstract spaces 34C25 Periodic solutions to ordinary differential equations
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